It was amazing! It was very small, on purpose, but they'd managed to very cleverly put a sink and a shower in there since the room had two floors.
On the top floor, beside the bed, the entire wall was a lit up picture of a man meditating by the sea. (You could use this as your only source of light.) And lying in bed, looking at this, listening to some meditation music and rain....oh wow, I was so comfortable!
Everything is also super modern and clean. In fact, the whole place looks new. And the staff is lovely. I had some questions about a post office and also needed some tape to glue an envelope together, and they were so happy to help.
Also free tea and coffee in the lobby. Always nice, when you're tired upon arrival.
I can't recommend this place more. If I went back to Hannover this is the only place I'd want to stay in!